package com.itheima.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.common.CategoryException;
import com.itheima.dao.CategoryDao;
import com.itheima.domain.Category;
import com.itheima.domain.Dish;
import com.itheima.domain.Setmeal;
import com.itheima.service.CategoryService;
import com.itheima.service.DishService;
import com.itheima.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryDao,Category> implements CategoryService {


    @Autowired
   private DishService dishService;
    @Autowired
    private SetmealService setmealService;



    @Override
    public void remove(Long ids) {
        LambdaQueryWrapper<Dish> dishLambdaQueryWrapper = new LambdaQueryWrapper<>();
        dishLambdaQueryWrapper.eq(Dish::getCategoryId,ids);
        int count = dishService.count(dishLambdaQueryWrapper);
        if (count>0){
            throw new CategoryException("当下分类关联了菜品，不能删除");

        }
        LambdaQueryWrapper<Setmeal> setmealLambdaQueryWrapper = new LambdaQueryWrapper<>();
        setmealLambdaQueryWrapper.eq(Setmeal::getCategoryId,ids);
        int count1 = setmealService.count(setmealLambdaQueryWrapper);
        if (count1>0){
            throw new CategoryException("当下分类关联了套餐，不能删除");
        }

        super.removeById(ids);
    }

}
